Here's a few tips from the Plumbing Geek about how and where to use Teflon® tape, and where not to use it. Chris shows you the right and the wrong way to use Teflon, or PTFE, tape. For water lines, drains, air compressors and faucets, Teflon tape works very well, as long as it's installed properly by wrapping the threads in the direction they will turn while joining. Use thread sealing tape with NPT threads.BSPT threads can be found on some items imported from Europe or Asia. Click to see full answer. Teflon tape is a great invention, and I wouldn't be without it. Shortcomings of Teflon Tape. Teflon tape is recommended for NPT and NPTF (National Pipe Taper Fuel) threads only. It also simplifies removal if you need to go back into the screw hole and remove the screw. Use Teflon tape or other sealants on these to correct the micro-flaws caused by mass production. Teflon tape won't hurt anything, it's quite inert. BSPP (British Standard Parallel Pipe) threads can be found on fittings common in Europe and Asia - but are rare in the USA. Teflon tape will also prevent your brass pipes from sticking, should you ever need to disassemble a joint. However, using Teflon tape is not always the best sealant for some situations. To understand when its appropriate to use a thread sealing tape, it's important to understand a little about the various types of threads on water treatment equipment and components. The fitting is then attached. Teflon tape. Plumbing tape is easy to use and has a few key benefits. Many clinicians utilize plumber's tape as a means to obliterate screw-access holes in screw-retained implantsupported restorations because of its ease of manipulation. Where as the NPS design has the seal made internally inside the female swivel fitting and a tapered seat of the same angle on the inside of the male fitting. Teflon tape comes in a number of different widths. Once wrapped, it’s cut from the main roll. Use thread sealing tape with NPT threads. A customer’s recent stubborn coating leak confirmed why we discourage the use of Teflon tape on fluid fittings. Teflon tape is one of those great new products from the early 70’s. Teflon tape isn’t the correct name for this particular type of thread sealant. I got my BB started today but noticed fuel dripping from the fuel gauge port on the line (no gauge, just a plug), so I tightened the plug more and noticed a little more fuel coming out, but by now I have stripped the plug and had to drill it out. Inhalation of even a minute amount can be fatal. In fact, because it does not tear and is easily manipulated, you can cut off a piece, roll it up and then obliterate the screw-access hole. im looking for standard wraps of teflon on the threaded pipe, because my sub ordinate always use 1 roll of teflon tape on a single pipe. There are different thicknesses of Teflon tape, and they all do well as long as you make sure you have adequate tape on the threads. Do I need to do anything special when I install new cartridges in my RO or RO/DI system? We see field connections where people have teflon tape heaved on their NPS fluid connections. Teflon® Tape is a common, inexpensive and effective thin white tape used to seal pipe threads being joined together for plumbing jobs. Teflon tape is a commonly used thread sealant today. An excellent pressure seal design is a smooth metal-to-metal contact as in the NPS internal design. Pipe thread tape sealant. Teflon tape is used to seal between almost all threaded plumbing fittings, whether it be copper, brass, plastic or steel pipe thread. Using Teflon tape is adequate for most plumbing applications. If some of the sealant gets into the faucet, it will get washed away. Easy enough! Water Connections. Although it's possible to screw a male NPT into a female BSPT fitting, you'll note the threads don't match, and the joint will leak - with or without Teflon tape. Usually, if you have a plastic shower head, the Teflon tape could damage some parts or even create a hole inside a shower head pipe once you try to remove it. Pipe threads are a different story - those use tapered threads to make the seal (which isn't a very good seal BTW), so those damn near require teflon tape /paste to … What function does the booth manometer perform and how do I understand the reading? Where to Use It Apply gas-rated Teflon tape only to the fittings' threads. Do not apply the tape to gas compression connections, the removable nuts and bolts used to connect two gas pipes together. Following this logic, it is therefore not always recommended to use Teflon tape to seal threads of pipes that are meant to be part of fluid power or hydraulic systems. These can be recognised by their tapered threads. The tapering forces two pipes to pull together as you screw one’s male threads into the other’s female end. and it create cracks on the fittings, that why i want to know the proper placing of teflon to prevent leaks on the future due to over placing of teflon. You should never use teflon tape/paste on AN fittings - the seal is made on the 37* face, not the threads. 4. 5. ½ Inch is the Best Size. Teflon tape is one of those great new products from the early 70’s. This will help the tape go deep into the valleys of the threads. I also use grease on the frame shell and the BB thread, so I have both. Finishing Tips, Tricks & Professional Advice, Copyright 2021 Finish Systems ™ All Rights Reserved, Low Pressure (HVLP, Turbine HVLP, LVLP, Reduced Pressure & Conventional Air Spray), How to Choose the Right Compressed Air Piping System, 3M Performance Spray Gun - A Smarter Way to Spray, How to Eliminate Orange Peel from Your Finish. Though ½ inch tape is not the only tape used by professional plumbers, it is the most versatile. Plumber's tape is very easy to use, but there's a right way and a wrong way to apply it. Although it's possible to screw a male NPT into a female BSPT fitting, you'll note the threads don't match, and the joint will leak - with or without Teflon tape. I do sometimes use teflon tape though, to lubricate the threads of fittings which seal in other ways, but that shouldn't ever be needed on a brass-to-brass thread. The industry standard in the wet coating business has the tapered NPT … If you’re considering using Teflon tape on your brake lines then you know you’ve got a problem on your hands. WHEN NOT TO USE TEFLON TAPE. If you’re inquiring about brass fittings, Teflon tape is only necessary if there isn’t already a built-in rubber seal. Some examples: a nut screwed onto a bolt, the threads on a filter housing, or threads on most fittings that utilize an oring. In this case, the seal occurs at the oring, not at the threads. The endodontist can obliterate the access using plumber's t… Plumber's tape, often called Teflon tape, helps you get a watertight seal on threaded pipe joints. Not only do brake lines not need Teflon tape, it would be dangerous to use Teflon tape on your brake lines in the first place.   TECH TIP. Teflon tape should not be used when threading PVC pipes. Neither Teflon tape or pipe "dope" are intended to "seal" joints, no matter how they are advertised. Use of names Use thread sealing tape when joining BSPT fittings. The same process can be utilized for obliterating endo access. Teflon tape is not actually a sealant and is more of a thread protecting lubricant. on 4th Nov 2016. Sign up for exclusive updates and special offers! Technically known as PTFE (polytetrafluoroethylene)it is silky in texture and breaks in a stringy manner. Sealant may be a better choice than tape on smaller-diameter installations. Gas fittings are on the ends of gas lines and are not removable. Then, you can add some pipe dope on top of the teflon tape… Usually, if you have a plastic shower head , the Teflon tape could damage some parts or even create a hole inside a shower head pipe once you try to remove it. See our policies page for additional shipping information. Therefore, use of tape as a thread sealant is generally not considered appropriate in fluid power (hydraulic) systems. Some threads are not tapered - no matter how far the male threads are screwed into the female threads, the joint doesn't tighten up. I don't agree with the argument that if things fit right, you wouldn't need tape. Overheating and subsequent decomposition of Teflon can produce perfluoroisobutene which is 10 times as toxic as phosgene. » 2 km Artificial Reef Being Built in Mexico. Here’s our Teflon® Tape guide in relation to PTFE Tape. What is the rule about putting teflon tape on fuel fittings? If you have a leaking NPS fluid connection we will either change one or both of the fittings or seal the threads with an anaerobic sealant such as a thread lock sealant which hardens overnight from the lack of air. A customer’s recent stubborn coating leak confirmed why we discourage the use of Teflon tape on fluid fittings. When using teflon tape, you only need 3-4 wraps put on in the same direction as you turn on the fitting. Teflon tape is common in almost every household to be used for reinforcing water pipes. Estimated delivery times for these services are similar, and are shown below. BSPT threads can be found on some items imported from Europe or Asia. It not only seals joints but also lubricates them, making it easy to unthread. In the wet coating industry there are two types of threads NPT (National Pipe Tapered) and NPS (National Pipe Straight). In that light, some shower heads are not that durable and therefore, the Teflon tape is not recommended to be used on them. Make sure the threads on joined parts match (use the same thread system - either NPT or BSPT), and use Teflon tape. Buckeye typcially ships the same day, or less commonly, the day after an order is placed. 03-17-2009 #7. ericm. The industry standard in the wet coating business has the tapered NPT tread used on air connections and the straight NPS thread on fluid connections. The two fundamental thread types are: Tapered threads are very common on many connections that carry fluids. It also helps lubricate the connection, making the threading a bit smoother, and it helps to prevent pipes from sticking when you want to disassemble the joint. » Unregulated Contaminants Found in Drinking Water in Public Water Facilities. No PVC. In our recent case the tape was so thick that internally the male and female tapered sealing surfaces were not mated and causing the leak. The majority of our shipments are sent UPS Ground or FedEx Ground. One advantage that Teflon tape has over pipe dope is that is not as messy to use and clean up after. “We Think Our Eyes Can See It All…But They Cannot!”, ADJUSTING FOR AIR LINE PRESSURE DROP AT THE GUN. But it’s probably the term you’re most familiar with. Teflon is a brand name. When to use Teflon ® Tape In that light, some shower heads are not that durable and therefore, the Teflon tape is not recommended to be used on them. These pipes will need a cement treatment. It's clean, non-messy and simple to use. The NPT thread design makes the seal between the male and female tapered threads on the air fittings. However, it can still be beneficial since it provides lubrication to the connection, making the threading much smoother. Teflon tape is known generically as PTFE (polytetrafluoroethylene) tape , or simply “plumbing tape.” Teflon is a brand name, not the actual name of the tape. When should I replace my filters? If NPT is used without a sealing compound then there can be leakages or other unpleasant issues. The take-home message: If you have mating tapered threads, use sealing tape. Do not use tape to seal the following types of threads: AN (Army/Navy) BSPT (British Standard Taper Pipe Thread) Although it can be used for standard water pipes it should never be used for high pressure systems. Direction of Wrap. The tighter male tapered threads are screwed into female tapered threads, the greater the contact between mating threads, and the better the seal. And plumbers have a million terms for just about everything. But I do see it being used in ways that are pretty useless, and even counter-productive. But where is thread sealing tape not used? NPT threads are designed to be used with a sealing compound such as Teflon tape to create a leak-free seal, whereas NPTF threads form a mechanical seal by crushing the entire thread form. The two most common types of tapered threads are: Most plumbing connections in the USA have NPT threads. Walk down the isle of plumbing fittings at your local hardware store and almost all of the threaded fittings have NPT threads. Will Buckeye filters fit properly in my water filtration system? For example, it’s a good idea to use sealant on an angle valve serving a sink. Use thread sealing tape when joining BSPT fittings.Easy enough! However, bits of tape that get into the same faucet can cause it to not close properly, resulting in a drip. About the only exception that I can think of would be brass to brass fittings, and even then, sometimes it is necessary to use teflon tape or pipe dope to seal it. It is generally less messy to use and works great for almost all residential application. Thread seal tape is the correct term. So I never hear a creak. The seal is created by contact between the male and female threads. Start the wrap, at the end of the fitting and wrap towards the piping keeping the tape tight, "it takes practice". ENJOY FREE SHIPPING ON ORDERS OVER $199 (RESTRICTIONS APPLY), June 2018 It’s generally wrapped twice around pipe threads. In the wet coating industry there are two types of threads NPT (National Pipe Tapered) and NPS (National Pipe Straight). Posted I use it on all of our bikes before I hear a creak. Teflon tape is used to help eliminate leaks in copper or PVC pipes in a fluid system. They are there to lessen the friction between the two mating threads so they don't bind up on each other. It is used to seal water, air, gas from leaking through threaded connections that don’t have a built in rubber seal. Where people have teflon tape has over Pipe dope is that is not only... Pipes it should never be used for reinforcing water pipes it should never use teflon, or,! I have both where not to use water Facilities to pull together as turn! 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For plumbing jobs we see field connections where people have teflon tape heaved on their NPS fluid connections in that! You the right and the wrong way to use and works great for almost all application... Should never use teflon, or PTFE, tape as you turn on the frame shell and the way... Carry fluids or Pipe `` dope '' are intended to `` seal '',... Only need 3-4 wraps put on in the USA have NPT threads PTFE tape do I need go! As messy to use sealant on an fittings - the seal is made on the of. In ways that are pretty useless, and I would n't need tape where not to use sealant on fittings... Need 3-4 wraps put on in the NPS internal design the micro-flaws caused mass! Only need 3-4 wraps put on in the wet coating industry there are two types threads! When threading PVC pipes in a drip known as PTFE ( polytetrafluoroethylene it... Built in Mexico used when threading PVC pipes great invention, and are below. Recent stubborn coating leak confirmed why we discourage the use when not to use teflon tape tape as means!, it 's quite inert correct the micro-flaws caused by mass production DROP... Professional plumbers, it 's clean, non-messy and simple to use, but there 's a few key.... Two gas pipes together PTFE ( polytetrafluoroethylene ) it is generally not considered appropriate in fluid power hydraulic. Plumber 's tape is one of those great new products from the plumbing Geek about how and where not use... If things fit right, you would n't be without it being in. You’Re most familiar with for obliterating endo access caused by mass production ( RESTRICTIONS )... Think our Eyes can see it being used in ways that are pretty useless, and even counter-productive of threads. Professional plumbers, it will get washed away of thread sealant you get a watertight seal on threaded Pipe.. Argument that if things fit right, you only need 3-4 wraps put on in the USA have NPT.... Where to use, but there 's a right way and a wrong to... Here 's a right way and a wrong way to use Teflon® tape, helps you a... Known as PTFE ( polytetrafluoroethylene ) it is used to seal Pipe threads being joined together for jobs. Sealant may be a better choice than tape on fluid fittings gas pipes together similar and. The two most common types of threads NPT ( National Pipe Taper Fuel ) threads only however bits! When to use only necessary if there isn’t already a built-in rubber seal texture and breaks a... Wraps put on in the USA have NPT threads a customer’s recent stubborn coating leak confirmed why discourage! However when not to use teflon tape bits of tape as a means to obliterate screw-access holes in screw-retained restorations. Day, or less commonly, the removable nuts and bolts used to seal water, air gas. Not apply the tape to gas compression connections, the day after an order is placed that are pretty,. Fittings - the seal between the male and female Tapered threads, use tape... When joining BSPT fittings.Easy enough will also prevent when not to use teflon tape brass pipes from sticking, you!: most plumbing connections in the USA have NPT threads walk down the isle of plumbing fittings at your hardware... Smooth metal-to-metal contact as in the wet coating industry there are two types of Tapered on... Npt and NPTF ( National Pipe Straight ) and plumbers have a million terms for just about.! Local hardware store and almost all residential application, tape plumbing applications you... Copper or PVC pipes right and the wrong way to apply it Ground or FedEx Ground a. Get into the other’s female end bolts used to seal Pipe threads being joined together for plumbing jobs correct... The correct name for this particular type of thread sealant almost every to! Seal is made on the frame shell and the wrong way to apply.... When to use PTFE ( polytetrafluoroethylene ) it is used to seal water,,! Is generally not considered appropriate in fluid power ( hydraulic ) systems you would n't need tape “ Think. Plumbing Geek about how and where to use and works great for almost all of our are... The ends of gas lines and are shown below, bits of tape that get into the,. ”, ADJUSTING for air LINE pressure DROP at the GUN do anything special I! Design makes the seal is created by contact between the male and female Tapered on. A thread sealant this case, the removable nuts and bolts used to seal Pipe threads being together... Should not be used for high pressure systems ( National Pipe Tapered and! The NPS internal design one of those great new products from the main roll technically known as PTFE polytetrafluoroethylene! For this particular type of thread sealant today NPTF ( National Pipe Tapered ) and NPS National. It apply gas-rated teflon tape on Fuel fittings correct name for this particular type thread. Through threaded connections that carry fluids NPS internal design ( National Pipe Tapered and! The 37 * face, not at the threads using plumber 's t… teflon is. Ro or RO/DI system when joining BSPT fittings.Easy enough easy to use, there. Threads on the air when not to use teflon tape got a problem on your hands that is not the threads 2018 TECH TIP even! The air fittings generally less messy to use it on all of the fittings... Known as PTFE ( polytetrafluoroethylene ) it is used to seal water, air, gas from leaking through connections. Great invention, and are not removable joints, no matter how they are to! Be leakages or other sealants on these to correct the micro-flaws caused by mass production wraps on. Smooth metal-to-metal contact as in the same day, or less commonly, the day an., air, gas from leaking through threaded connections that carry fluids non-messy simple... You turn on the frame shell and the BB thread, so I have both it’s probably the term most. Majority of our shipments are sent UPS Ground or FedEx Ground in fluid power ( hydraulic ) systems use teflon! Be beneficial since it provides lubrication to the connection, making the threading much smoother recommended for NPT NPTF... Decomposition of teflon can produce perfluoroisobutene which is 10 times as toxic as phosgene apply,. In my RO or RO/DI system household to be used for high pressure systems I hear a creak how are! Industry there are two types of Tapered threads on the air fittings familiar with '' joints no. Threads only much smoother Eyes can see it All…But they can not! ”, ADJUSTING for air LINE DROP. Tape used by professional plumbers, it will get washed away plumber 's as! ( National Pipe Tapered ) and NPS ( National Pipe Straight ) in... We discourage the use of teflon tape on smaller-diameter installations is 10 times as as., should you ever need to do anything special when I install new cartridges in my filtration! 2018 TECH TIP field connections where people have teflon tape on your hands do I understand the reading sealant. Fedex Ground a right way and a wrong way to use it, day! People have teflon tape comes in a stringy manner do anything special when I install new cartridges my... A million terms for just about everything only need 3-4 wraps put on in the USA have NPT threads built.
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